CAJ | 학술논문

以对氯苯胺（ PCA）为目标污染物，研究了常温下FeS矿活化H2 O2非均相类Fenton体系对难降解有机物的去除效果。分析了初始pH值、催化剂和H2 O2投加量等重要因素对PCA降解率的影响。当PCA浓度为0．2×10－3 mol／L，溶液初始pH值为3．0，H2 O2投加量为3．2×10－3 mol ／L，FeS矿用量为0．4 g／L，反应20 min时，PCA去除率可达100％，且反应进行到40 min后，已达到完全脱氯效果。在此基础上，通过对Cl －、SO42－、Fe3＋等中间产物离子和总有机碳（ TOC）变化规律的测定，探讨了有机物降解机理。研究结果表明：FeS矿对催化H2 O2氧化具有很强的催化活性，能提高H2 O2的利用效率，相比于单一含铁矿物具有更好的催化性能，并且催化剂易于沉淀分离，回收利用。
이대록분알（ PCA）위목표오염물，연구료상온하FeS광활화H2 O2비균상류Fenton체계대난강해유궤물적거제효과。분석료초시pH치、최화제화H2 O2투가량등중요인소대PCA강해솔적영향。당PCA농도위0．2×10－3 mol／L，용액초시pH치위3．0，H2 O2투가량위3．2×10－3 mol ／L，FeS광용량위0．4 g／L，반응20 min시，PCA거제솔가체100％，차반응진행도40 min후，이체도완전탈록효과。재차기출상，통과대Cl －、SO42－、Fe3＋등중간산물리자화총유궤탄（ TOC）변화규률적측정，탐토료유궤물강해궤리。연구결과표명：FeS광대최화H2 O2양화구유흔강적최화활성，능제고H2 O2적이용효솔，상비우단일함철광물구유경호적최화성능，병차최화제역우침정분리，회수이용。
The paper studied the removal effect of organism by use of Fenton -like system of FeS ore par-ticles H2 O2 as hetrogeneous catalysts for the degradation of p -chloroaniline ( PCA) through batch exper-iments.It also examined the effects of initial pH , activator and H2 O2 dosages on PCA degradation .The results showed that under the conditions of initial PCA concentration of 0.2 ×10 -3 mol/L, initial pH of 3.0, FeS ore particles dosage of 0.4 g/L, H2 O2 concentration of 3.2 ×10 -3 mol/L, PCA degradation in aqueous solution reached 100%within 20 min.Moreover, Cl -, SO4 2-and Fe3+ions as the main inor-ganic products together with TOC in aqueous solution were determined to investigate the oxidative mecha-nism.The results indicated that unlike traditional Fenton reagent , the reaction of FeS ore particles with H2 O2 can effectively catalyze the oxidation of organic contaminants .Furthermore catalyst can be easily re-covered from wastewater and reused .